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Finding the Fourth Proportional to 221,482.83, 332,249.09 and 81,241.05

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Solution

The fourth proportional to 221,482.83, 332,249.09 and 81,241.05 is: 121,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,482.83 : 332,249.09 = 81,241.05 : x
  2. Step 2: Convert to fraction form
    221,482.83/332,249.09 = 81,241.05/x
  3. Step 3: Cross multiply
    221,482.83x = 332,249.09 × 81,241.05
  4. Step 4: Simplify right side
    221,482.83x = 26,992,264,526.94
  5. Step 5: Solve for x
    x = 26,992,264,526.94/221,482.83
  6. Step 6: Final answer
    x = 121,870.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.